Imaging 123I with a scintillation camera. A study of detection performance and quality factor concepts
(1977) In Physics in Medicine and Biology 22(2). p.266-277- Abstract
Image quality, resolution and sensitivity of a scintillation camera equipped with various collimators have been investigated using high purity 123I. Pulse height distributions of 123I from a thyroid phantom partly in air and partly immersed in water demonstrated the substantial septa penetration of the 440 and 529 keV gamma rays of 123I with high resolution collimators. Line spread functions were recorded and the modulation transfer function was evaluated from them. The two concepts of 'figure of merit' also used were QB=Sa mod MTF mod 2, where Sa is the plane sensitivity and QC=S2/(S+2B), where S is the true signal from the object and B... (More)
Image quality, resolution and sensitivity of a scintillation camera equipped with various collimators have been investigated using high purity 123I. Pulse height distributions of 123I from a thyroid phantom partly in air and partly immersed in water demonstrated the substantial septa penetration of the 440 and 529 keV gamma rays of 123I with high resolution collimators. Line spread functions were recorded and the modulation transfer function was evaluated from them. The two concepts of 'figure of merit' also used were QB=Sa mod MTF mod 2, where Sa is the plane sensitivity and QC=S2/(S+2B), where S is the true signal from the object and B is the total background or noise due to septa penetration and scatter.
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- author
- Bolmsjö, Magnus S. ; Persson, Bertil R.R. LU and Strand, Sven Erik LU
- organization
- publishing date
- 1977-12-01
- type
- Contribution to journal
- publication status
- published
- in
- Physics in Medicine and Biology
- volume
- 22
- issue
- 2
- article number
- 006
- pages
- 12 pages
- publisher
- IOP Publishing
- external identifiers
-
- pmid:857263
- scopus:0017367246
- ISSN
- 0031-9155
- DOI
- 10.1088/0031-9155/22/2/006
- language
- English
- LU publication?
- yes
- id
- 31108aed-7fbf-498e-a7d5-e2f88dec392c
- date added to LUP
- 2020-08-30 21:03:31
- date last changed
- 2024-01-02 17:28:10
@article{31108aed-7fbf-498e-a7d5-e2f88dec392c, abstract = {{<p>Image quality, resolution and sensitivity of a scintillation camera equipped with various collimators have been investigated using high purity <sup>123</sup>I. Pulse height distributions of <sup>123</sup>I from a thyroid phantom partly in air and partly immersed in water demonstrated the substantial septa penetration of the 440 and 529 keV gamma rays of <sup>123</sup>I with high resolution collimators. Line spread functions were recorded and the modulation transfer function was evaluated from them. The two concepts of 'figure of merit' also used were Q<sub>B</sub>=S<sub>a</sub> mod MTF mod <sup>2</sup>, where S<sub>a</sub> is the plane sensitivity and Q<sub>C</sub>=S<sup>2</sup>/(S+2B), where S is the true signal from the object and B is the total background or noise due to septa penetration and scatter.</p>}}, author = {{Bolmsjö, Magnus S. and Persson, Bertil R.R. and Strand, Sven Erik}}, issn = {{0031-9155}}, language = {{eng}}, month = {{12}}, number = {{2}}, pages = {{266--277}}, publisher = {{IOP Publishing}}, series = {{Physics in Medicine and Biology}}, title = {{Imaging <sup>123</sup>I with a scintillation camera. A study of detection performance and quality factor concepts}}, url = {{http://dx.doi.org/10.1088/0031-9155/22/2/006}}, doi = {{10.1088/0031-9155/22/2/006}}, volume = {{22}}, year = {{1977}}, }